4 ms·
As a network engineer, tcpdump and friends are on my list of most frequently used applications. If you're not a network engineer, you'd be amazed at how many t
by jlgaddis 11y ago
As a network engineer, tcpdump and friends are on my list of most frequently used applications.
If you're not a network engineer, you'd be amazed at how many times we get issues escalated to us exclaiming that "it's the firewall" and demanding that we fix it.
It's usually not the firewall, though, and unfortunately it falls on us to prove that that's the case. It's not always easy but, luckily, tcpdump and friends allow me to show that and I can punt the issues back to where they came from.
(Several years ago, I was able to prove it was a customer's on-premise firewall -- managed by them -- and not our firewall based upon the packet timestamps and this little thing known as "the speed of light".)
- devonkim 11y agoI'm not a network engineer and oftentimes have to use tcpdump and mtr on behalf of network engineers combined with Chrome devtools to show application developers that there's nothing wrong with AWS or even the internal enterprise network and that it's closer to them. The hard part is trying to make these diagnostic workflows scale for tens of thousands of application developers when you have maybe a handful of people that can help them in this manner.
- anonymak 11y agoSorry for the stupid question, but by 'friends' you are referring to a utility or just peer support? If its the former, could you post a link? Thanks.